MILNES, Paul. Minimal and distal functions on some non-Abelian groups. Mathematica Scandinavica, Berkeley, CA, United States, v. 49, p. 86–94, 1981. DOI: 10.7146/math.scand.a-11922. Disponível em: https://journals.msp.org/mscand/article/view/1749. Acesso em: 25 jul. 2026.